Population information

Order name Ciconiiformes
Family name Ardeidae
Scientific name Ardea alba Common name Great White Egret
Population name melanorhynchos, Sub-Saharan Africa & Madagascar
Breeding range Sub-Saharan Africa, Madagascar Non-breeding range
Red List Category Least Concern
Ramsar regions Africa
Notes

Conservation Framework

Conservation framework Notes
AEWA
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 3 2001 2001 100,000 500,000 No quality assessment [R190]
WPE 4 2001 2001 100,000 500,000 No quality assessment [R190]
WPE 1 0 0 30,000 30,000 No quality assessment [R518]
WPE 2 0 0 25,000 100,000 No quality assessment [R26]
WPE 5 2001 2001 100,000 500,000 Expert opinion [R190]
AEWA CSR 5 2001 2001 100,000 500,000 Expert opinion [R190]
AEWA CSR 4 2001 2001 100,000 500,000 Expert opinion [R190]
AEWA CSR 6 2001 2001 100,000 500,000 Expert opinion [R190]
AEWA CSR 7 2001 2001 100,000 500,000 Best guess [R190]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1991 2001 STA No quality assessment [R190]
WPE 4 1991 2001 STA No quality assessment [R190]
WPE 1 0 0 Unknown No quality assessment
WPE 2 0 0 Unknown No quality assessment
WPE 5 1991 2001 INC Poor [R910]
AEWA CSR 5 1991 2001 INC Poor [R910]
AEWA CSR 4 1991 2001 STA Poor
AEWA CSR 6 1991 2014 STA Poor [R1371]
AEWA CSR 7 2006 2015 STA Reasonable [T6814] [R1548]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 3000
WPE 4 2006 3000
WPE 1 1994 300
WPE 2 -1 -1 Not Set
WPE 5 2012 2200
AEWA CSR 5 -1 -1 Not Set
AEWA CSR 4 -1 -1 Not Set
AEWA CSR 7 2018 2200

References

  • R190 - Dodman, T. 2002. Waterbird Population Estimates in Africa. Unpublished report to Wetlands International.
  • R518 - Perennou, C. 1992. African waterfowl census 1992. Les D?nombrements Internationaux d?oiseaux d?eau en Afrique, 1992. IWRB, Slimbridge, U.K. 87 pp.
  • R26 - Baker, N. (compiler). 1996. Tanzania Waterfowl Count, January 1995: The first coordinated count of the major wetlands of Tanzania. Wildlife Conservation Society of Tanzania. Dar es Salaam
  • R910 - Trolliet, B. in litt 2012
  • R1371 - Dodman, T. 2014. Status, Estimates and Trends of Waterbird Populations in Africa: AEWA-listed African populations. Wetlands International. (CSR6 African populations) URL: https://www.wetlands.org/publications/1304/
  • R1548 - Wetlands International (2017) Flyway trend analyses based on data from the African-Eurasian Waterbird Census from the period of 1967-2015. Ede, The Netherlands: Wetlands International. URL: http://iwc.wetlands.org/index.php/aewatrends
  • R1619 - Nagy, S. & Langendoen, T. (2020) Flyway trend analyses based on data from the African-Eurasian Waterbird Census from the period of 1967-2018. Online publication. Wetlands International, Wageningen, The Netherlands. URL: http://iwc.test.wetlands.org/index.php/aewatrends8

Notes

  • T6814 - Stable both in the short- and the long-term.
  • T7455 - Based on IWC data from 21 countries, Nagy & Langendoen (2020) reported a stable trend (1.0207) for the period of 2000-2017 and a decrease (0.8917) for the period of 2008-2017. Based on the growth rate of the last 10 years, the population is projected to decrease by 86% in 3 generations compared to the population levels in 2008. However, this might be just part of a long-term population fluctuation.



Copyright Wetlands International 2012

Citation: Wetlands International (). "Waterbird Population Estimates" . Retrieved from wpe.wetlands.org on